Arthur hough



A. HouH. CONDENSER FOR NITHIC ACID VAPORS APPLICATION FILED IAN.`30, I9l9.

Patented Dec. 30,1919.

l l n l u i l nan srn'rns coNDENsER Foa-NITR'Ic-Acrn vAPoRS.

Application filed January 30, 1919.

To all whom t may concern:

Be it known that -I, An'iHUR IIOUGH, a subject of the King of Great Britain, -residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Condensers for Nitric-Acid Va-pors, of which the following is a specification.

This invention relates to improvements in condensers, particularly adapted to the condensation of nitric acid vapors.

The invention has for its object especially to provide for obtaining the highest efficiency in the condensation of the nitric vapors.

A further object is to carry out this end in a simple, effective and expeditious manner and with facility.

Other objects of the invention will appear in the further or subsequent disclosure thereof.

The invention therefore consists of the peculiar construction and arrangement of parts substantially as hereinafter more fully disclosed by the following description and accompanying illustration.

In said illustration or drawing is shown the preferred embodiment of my invention wherein it will be understood that various changes and modifications may be made as to the detailed construction and arrangement of parts without departing from the spirit or scope of the appended claim, and in which drawing:

Figure 1 is a partly side elevation and partly sectional view of my improved nitric acid condenser, other parts being shown fra gmentally g Fig. 2 is an end elevation ofthe same;

Fig. 8 is a horizontal section thereof, taken on the line 3-3 of Fig. l 4viewing downwardly.

In carrying out my invention, I have shown the parts as the cooling or condensing casing or container 1, in sections 2, the upper and bottom edges of the end plates 3' of the sections being formed with meeting arcuate recesses 4:, all as generally devised in my pending patent-application, filed April 9,

1918, Serial No. 227 ,468, and therefore need not be further described in detail herein.

As in my said application, I provide a sinu- Specification of Letters Patent.

Patenten Dee. so, raie.

Serial No. 274,018.

condensing the vapors of the nitric acid, as presently more fully made apparent.

I'Vithin thev casing V1 are disposed horizontal partitions (3, one between each two oppositely extending sections or limbs of the sinuous pipe-arrangement 5 as clearly shown particularly in Fig. l, said partitions being of a material having low conducting properties, preferably cypress wood, for obvious reasons. The partitions 6 are preferably held in place by providing the lateral portions of the casing-sections 2, upon the inside with perforated or apertured lugs 7 through which partitions and lugs are inserted nut-equipped bolts 8, or the securing of said partitions in position may be effected in any other practicable way. These partitions are provided with openings or passages 9, at their alternately opposite ends, said openings thus being staggered with respect to each other, to provide for the corresponding or suitable passing of the water or condensing agent through the casing and along the respective limbs of the nitric acid conducting pipe-arrangement for the more eective condensation of the nitric acid vapors, as will be readily appreciated.

It will be observed that the nitric acid is passed from above, downwardly into the sinuous pipe-arrangement 5 and therethrough, taking a zigzag or tortuous course and finally discharging at the lower end of the pipe-arrangement 5. Simultaneously with this passing of the nitric acid, a cooling or condensing agent, as water, is counterpassed through the casing 1, being admitted or introduced as at 10, and taking, similarly as the nitric acid, a zigzag or tortuous course, upwardly along or following the pipe-arrangement 5, and finally overflowing or discharging through the opening 11 at the diagonally opposite end of the casing, thus providing as previously indicated, for the counter-current passing of the nitric acid and the cooling or condensing agent, whereby is obtained the highest efciency in effecting the condensation of the nitric acid vapors. It is obvious that in event of the nitric acid entering the bottoni limb of the pipe-arrangement the direction of the flow of the water may be reversed, being run in from the top, instead of from the bottom.

What I claim is:

A condenser for nitric acid vapor, comprising a casing built up of flanged sections, such sections being adapted to be bolted together to form a continuous upright device, the sections being also provided, at their meeting places, on opposite ends, With meeting arcuate recesses, a plurality of pipes each oppositely bent at points near both ends thereof, and extending through the openings in the casing formed by the meeting of said arcuate recesses, said pipes thereby forming a continuous passage for the nitric acid and its vapor, which passage is free from joints inside of 'said easing, an inlet and an outlet for cooling fluid located at the top and bottom of said casing, and baies 1n said casing provided with apertures 1n Vstaggered relation, whereby the cooling Huid 15 ARTHUR HOUGH.

Witnesses:

R. S. OLIVER, Jr., LEONIE CRANE. 

